Vitamin B 12 is also known as Cobalamin. It is a water soluble Vitamin which boosts the metabolism. It helps in the formation of the Red Blood Cells. Vitamin B 12 supports the functioning of Brain and nourishes the Nervous System. It helps to convert the food into Glucose and provides energy to the body.

Normal level of Vitamin B 12 in the body
200 to 900 pg/ml

Daily requirement of Vitamin B 12
0 to 6 months : 0.4 mcg
7 to 12 months : 0.5 mcg
1 to 3 years : 0.9 mcg
4 to 8 years : 1.2 mcg
9 to 13 years : 1.8 mcg
Above 13 years : 2.4 mcg
Pregnant / Nursing : 2.6 / 2.8 mcg

Function of Vitamin B 12 in the body
Vitamin B 12 helps in making DNA cells in the body. It supports the Nervous System and helps in regeneration of Red Blood Cells. It converts Carbohydrates into Glucose which gives energy to the body.

Benefits of Vitamin B 12
Vitamin B 12 helps to maintain a healthy digestive system. It improves the Cholesterol level which protects from Heart Disease and High Blood Pressure. Vitamin B 12 improves the health and growth of the Hair. It keeps the Hair soft and shiny. It repairs the cells which make the Skin flawless and slows down the ageing process. Vitamin B 12 treats Alzheimer and Dementia by decreasing the body's ability to metabolize neurotransmitters. It reduces Fatigue and gives relief from Stress. Vitamin B 12 helps the body to absorb Folic Acid which boosts the Metabolism. It also helps to prevent cancer.

Effects of deficiency of Vitamin B 12 in the body
The lack of Vitamin B 12 leads to Fatigue. Extreme tiredness and lack of energy. The deficiency of Vitamin B 12 may cause Anemia which is a blood disorder. Deficiency of Vitamin B 12 can cause Anorexia and Hair loss.

Symptoms of Vitamin B 12 deficiency
Anemia
Anorexia
Diarrhea
Dizziness
Hair Loss
Depression
Brittle Nails
Weakness and Fatigue
Yellow tinge to the Skin and the Eyes

Effects of excess Vitamin B 12 in the body
The excessive Vitamin B 12 in the body may cause severe Acne and Skin Rashes. Vitamin B 12 contains Iodine and Sorbitol. Iodine is essential for the body, but when taken in excess it causes indigestion, Thyroid and burning sensation in the Mouth. Excessive intake of Sortibol present in Vitamin B 12 causes Dry Mouth.